If you’re a tree hugger, I’d recommend you this instead of some hybrid that has inefficient system and unstable Ni-MH batteries and weak combustion engines. This here is the lightest bicycle in the world. This is a real traveling tool for tree huggers. Period.
Weighting at only 6.28 pounds, it’s called the Spin Light Bike. It’s the world’s lightest, fully-built two-wheeler.
A collaboration between over a dozen companies worldwide, nearly every piece of the Spin Light Bike is made of carbon fiber, from the frame to the brakes and even the cranks. As you’d expect, few of these parts are available at your LBS, meaning custom components had to be made to order, so don’t be disappointed when we can’t give you a price.

And for those poor souls griping about carbon fiber’s perceived lack of longevity, know this: the Spin’s collaborators have logged between 12,000 and 15,000 miles since its initial build. So you don’t have to worry about broken bikes half way hiking up Mt. Santubong.

SOURCE via Het Fair Wheel Podium